diff --git a/dlls/d3dx9_36/mesh.c b/dlls/d3dx9_36/mesh.c
index 6f268f2962b..b1a1a768a64 100644
--- a/dlls/d3dx9_36/mesh.c
+++ b/dlls/d3dx9_36/mesh.c
@@ -69,7 +69,7 @@ struct d3dx9_mesh
     D3DXATTRIBUTERANGE *attrib_table;
 };
 
-const UINT d3dx_decltype_size[] =
+static const UINT d3dx_decltype_size[] =
 {
    /* D3DDECLTYPE_FLOAT1    */ sizeof(FLOAT),
    /* D3DDECLTYPE_FLOAT2    */ sizeof(D3DXVECTOR2),